So, I'm slowly starting to get the feel of the jbpm engine. But I've hit a brick wall... well found a bypass but let's start at the beggining. One process contains multiple subprocesses. I need to be able to fetch the list of all tasks associated to the "Master ProcessInstance". I've tried going thru the Execution query but I could never find how I can start from my ProcessInstance and access the sub-process execution without knowing it's specific ID. Until I started looking at the ExecutionImpl binding with the database. There is a getSubProcessInstance() method that is not available on the Execution interface. I could just cast and access it, but is there probably a reason it's not made available. So, how can I do what I need without that casting patch? View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4259420#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...